Lawn-sprinkler.



J. D. HUMPHREY & G. H. ATKINS. LAWN SPRINKLER.

APPLICATION FILED JULY 1, 1907.

904,259. Patented Nov. 17, 1908. '7

172M922 for. y %T7f u7 ue m UNITED STATES PATENT orrion JOHN D. HUMPHREY, OF NORFOLK, AND GEORGE H. ATKINS, OF TORRINGTON, CONNECTICUT.

LAWN-SPRINKLER.

Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed. July 1, 1907. Serial No. 381,808.

To all whom it may concern:

Be it known that we, JOHN D. HUMPHREY and GEORGE H. Ariuxs, citizens of the United States of America, residing at Norfolk and Torrington, respectively, in the county of Litchfield and State of Connectiout, have invented certain new and useful Improvements in Lawn-Sprinklers, of which the following is a specification.

Our invention relates to the class of devices used for spreading a stream or streams of water as for lawn sprinkling and the object of the invention is to provide a device of this class in which a maximum amount of surface may be covered with a minimum amount of water flowing from the sprinkler and also at a minimum pressure; a further object of the invention is to provide a sprinkler that shall be extremely cheap in construction and durable and effective in operation.

A form of device in the use of which these objects may be attained is illustrated in the accompanying drawings in which- Figure 1 is a view in partial vertical cen tral section through the sprinkler. Fig. 2 is a top view with part broken away to show construction.

In the accompanying drawings the numeral 6 denotes the body of the sprinkler having a reservoir 7 into which an inlet 8 leads. This inlet is properly constructed to receive a hose or like part, in the form shown the inlet opening being screw-threaded for the reception of a nipple on the hose. A spike 10 extends from the body part as a means of holding the structure upright as by insertion in sod or the like.

The parts above described are of old and well known construction and, except in combination with the structure hereinafter described, forms no part of our invention. Other means, common to devices of this class, may be employed for supporting the body part, such means including devices for movably supporting the structure if desired.

The body part may be constructed of any suitable material, preferably metal cast to shape, and its outer end is formed with a bell-shaped mouth 11. A cap 12 preferably made of comparatively thin metal, as brass, is secured to the body part, in the construction herein shown this cap being spun over the edge of the bell-shaped mouth, thus securing the two parts tightly together. A dome 13 is formed at the center of the cap 12 and a circular rib 1 1 is also located on the lets 17 is located within the dome 13. The

inner row of outlets may consist of any desired number of openings, but in the preferred form of construction four spaced equally apart have been found to produce the most satisfactory results, as by the use of this number the sheets of water formed by the contact of the different streams with the surface of the deflector do not cross or interfere with each other. This enables the force of each stream to be exterted to its full extent in the sheet of water produced from each stream so that the sheet is projected to the greatest extent. The separate series of streams strike the wall of the deflector on the inner and outer sides respectively thereby producing two separate sheets of water. The sheet produced by the outer series strikes the wall and is deflected outward at a more acute angle than the sheet produced by the inner series which describes a more gradual curve. The inner series of openings 17 may also be formed in any desired number, preferably four, and these openings are so located on the dome 13 that the streams of water are thrown against the inner surface of the deflector thus producing a second series of sheets of water separate from the first.

The deflector 18 is flaring or of bell shape, as plainly shown in the drawings, and so formed as to receive on its outer surface the streams of water from the outer row or series of outlet openings and on its inner surface the streams of water from the inner series of outlet openings. The neck or reduced portion of the deflector is secured within the groove or seat 15 in any desired manner, the dome 13 being located at the bot tom of the recess formed by the deflector.

It is contemplated to form the outlet openings at such distances apart that the sheets of water formed by the deflector shall not intercept or interfere with each other. The dis tance of these openings apart will therefore depend to a great degree upon the pressure or head of water in connection with which the device is used, but as above stated four openings inside of the deflector have been found to produce the most satisfactory results.

By the construction of the deflector to act upon both the series of outlets located at the bottom of the defiecor both inside and outside thereof sheets of Water producing a Very line spray are obtained Which are projected to a maximum extent.

That We claim as our invention and desire to secure by Letters Patent is 1. In a sprinkler nozzle, a flared body portion formed integral with a supporting rod, a cap having two concentric series of openings and a flared deflector mounted between said series, one o of said series directing streams against the inner Wall of said deflector and the other directing streams against the outer Wall.

2. In a sprinkler nozzle, a flared body portion of heavy material having a support formed integral therewith, a cap of light material closing the upper end of said body portion, a dome in the center of said cap having a series of openings therein, a perforated rib surrounding and spaced from said dome, and a flaring deflector disposed in said space.

In testimony whereof We afliX our signatures in presence of two witnesses.

JOHN D. HUMPHREY. GEORGE H. ATKINS. WVitnesses:

HOWARD D. FOSTER, WILFRED E. BARNES. 

